2 Answers
2

The error you refer to, Error 0xC004C020, is due to: "The activation server reported that the Multiple Activation Key has exceeded its limit." -- Microsoft Support.

The same page goes on to say the remedy or possible workaround is: "Contact the Product Activation Call Center to obtain a new MAK or to increase the activation limit on the existing MAK". Instructions on how to get the Product Activation Call Center phone number is found at this Microsoft Support page.

To solve this issue I clicked on the option to call the MS service and activate it. Windows gives a code, that you input on your phone and then you receive another code to input on your computer. This worked.